420A Spark gap

[Inkdlyfe]

So i got a question about gap of the plugs I know i asked about what size it should be before BUT I have a question about it . So right now I'm waiting on my new inner cooler pipe to come so im n.a right now BUT I'm fully build still .50 over pistons 8.8.1 low compression bigger valves and rods etc everything is still build but im not turbo and have stock injectors with about 50 psi of fuel. Now should I make the plugs .028 like i do when I'm turbo or put them to stock spark gap not being turbo but im still built ? Trying to figure out cuz it's stuttering at high rpms like 5k plus cruising around 5k I'm reading 12.6-13.6 on my AFR all depends how long I hold it before shifting and idle is about 14.9 also has a minor back fire too, i read i night be running too rich and it's falling on its face I have new plug and new wires and I tested my coil pack and it's good. But my plugs are tapped at about .035 with no cel also. Should i change my fuel psi? Change my spark gap?

 

[spyderdrifter]

I would put the gap at stock for now. Also, if you have no turbo hooked up, which essentially increases your compression, your car will almost go nowhere. Read here: http://www.dsmtuners.com/threads/can-i-run-low-compression-pistions-in-a-non-turbo-engine.199337/

And here's some more great info: http://dsportmag.com/the-tech/boost...igh-boost-levels-and-high-compression-ratios/

 

[Inkdlyfe]

Makes sense just figured it would be good question to be asked thanksss

 

[boostdawd]

What type of plugs are u running and how much boost?

 

[spyderdrifter]

He would have zero boost since he said the turbo isn't installed yet.

 

[codydsm1]

He would have zero boost since he said the turbo isn't installed yet.

good catch ! Go NGK all the way Turbo or not. gap to stock for now due to lower comp pistons with no turbo